Skate



Nov. 30 1926.

H. M. SMILDEN SKATE Filed April l, 1926 Patented Nov. 3G, 1926.

UNITED STATES..

finiti/Inn sil/tinnen, or MINNEArfoLsL MINNESOTA.

SKATE;

Appliatio'n meal April' 1, 1926. sei-m1 No. 98,980.

My inventionv relates to skates and has for its object to provide the same with replaceable blades adapted tobe easily ap plied and easily removed and hence be substituted one for the other, at will.

To the above end, the invention Vconsists of the novelv devices,- combinations ot' devices and arrangement ot' parts hereinafter described and defined inl the claims'. u

ln' the aecoinpanyi'ng4 drawings, which illustrate the invention. like characters indicatev li'lre parts' throughout the several views.

Referring to the drawings:

Fig. 1 is a' side elevation shoivingf a skate proii'ided with a detachable blade in accordance v'vi'h my invention; l A

Fig.` Q is a side elevation of the blade re moved 'troniY the skate;

Figs. il. l and 5 are details in transverse section taken respectively ony the" lines Sli-8, the and ot Fig.4 1;

F (S is a fragmentary section talrenl on the line 6 6 ot Fig. 3; and y Fig; 'i' is a detail showing one of the clampingl bolts removed.

The skate illustrated is of the type generally desig'rnated as a tubular skate and thc' body thereof is shown as ni'ade up of a lgiladelholding sheath 8. a sole plate 9', al l'ieel plate 10, a bracket 11 connecting'- the heel plate 1() to the sheath 8, and brackets 12 and 13 coniie'ctingl the sole plate 9 to th i, sheath 8. Attention is here called to the fact thft tac sheath S at its front and rear portions is U-shaped in cross section und has parallel sides only slightly spaced While the intern'iediate portion ot'- the sheath between the" points' marlied j/-y/ is made tubular at its top as indicated at 14 but at its lower portion is blended into and for-ins con tinuations of the parallel .sidesof the sheath'.4

This tubular portion 14 very greatly stifllens the sheath at its intermediate portion and particularlg,T between the plates 9 and 10.`

The blade 15 is a thin flat b ar of properly tempered steel and nearits front yand rear ends is formed with L-sh-aped lock notches 16 that co-operate with bolts 17 to form bayonet joints. As shown, there are ttvo oit these notches and tivo cooperating bolts 17. These bolts have square Shanks that are"l extended through square holes in the parallel sides or 'flanges of the sheath but their outer ends are threaded and equipped with nut-s 18. At the extreme rear the sides or flanges of the sheath 8 are pressed together as shown t3 and are solidly connected by a rivet i9. The central portion of the blade 15 is preferably out down as shown at 15a. At'its extreme liront end and at its upper edge the blade 15 is formed With a shallow notch 20. Vlien the blade is applied in working position as shown in Fig. 1 the bottom of the notch 20 and the liront extremity thereoli are engagedV against a rivet or small bolt 21 that is passed through the lower prongs ott' the bracket 1Q and through the 'tient ends of the side flanges oi the sheath 8. Also, iv ien the blade is in position, the upper edge ol its central portion bears against a rivet or sniall bolt 29 applied through theside iiauges of the sheathl just below its tubular portion 14., as best shoivn in Fins. 1 and 1l; and, moreover, at such time the reduced rear end 15b bears against the lower edge of the rear end ofthe flanges tlf, as best shown in F igs. 1 and 1When the blade 15 ijs to be applied in Working' position or removed therefrom, the nuts 18 on the bolts 17 must be loosened up. Vihen this is done, the blade mayy be iuterlocked With the square portions of the bolts 17 by lirst pressing' the blade upward and then moving the hsaine slightly rearward so as to position said bolts in the i'ioru'ard horizontally extended portions ot' the lock notches 16. This slight rearward movement ot' the blade brings" the `'front ci: reinity oil the notch 2O against the shaft 21 as a stop and also forces `the vertical rear end portion 15 ol the rblade against the flanges El as a stop.

Fig. t3 shows the saine position ot` the parte that is shoivn in Finn 1. lVhen the l lade is inserted between the parallel side Langes ol the sheath it will quite closely lit the same even When the nuts 18 are loose. but when the nuts 18 are tiglitened sai.r side `flanges will be lirnily clamped against the blade and the blade Will be solidly and positively held to the sheath. The clamping' aetion ot' the nut-equipped bolts l? i ill be suflicient to hold the blades against displacenient under most conditions, but sometimes a skater Will jump with great torce on the toes ot the skate, thereby producing a if'ery powerful rearward driving' action of Jthe blade Which, in the arrangen'ient, is positively resisted at four points, to wit: at the front extremities of the lock notches 1G, at the front extremity of the notch 20, and by the front portions of the flanges 8a.

lt is highly important that the sides ot the sheath be free so that they can be sprung together by tightening the bolts and that the interposed blade is the only element that keeps the sides of the sheath from being pressed together. rl`his yielding action permits the blade to be tightly and frictionally clamped between the sides ot the sheath. The rivets 2l and 22 do not interfere with this lateral yielding action of the sides oi the sheath but simply limit separation thereof.

Obviously, blades of the beet character may be very quickly and easily applied or removed. It enables substitution of blades having difierent lines; that is, blades especially adapted for fast skating or ttor hockey skating or even for figure skating. Moreover, it is possible with this arrangement to provide blades ot such low cost that when dull they may be thrown away and others substituted at practically the same cost as sharpening of thev skates. In any event, it provides an arrangement in which plurality of sharp blades may be kcarried and the one quickly substituted for the other. Moreover, if a blade should be broken it can be easily replaced by a new blade.

That I claim is:

1. A skate having a sheath with sides spaced to receive a blade and be pressed against the same, in combination with a blade fitted between the sides of said sheath, and means applied to the sheath tor clamping the sides thereof onto the'blade, the said blade and sides of the sheath having interlocking bayonet joints.

2. A skate having a sheath with side spaced to receive a blade and be pressed against the same, in combination with a blade fitted between the sides of said sheath, and means applied to the sheath Jfor clamping` the sides thereof onto the blad-e, the said blade and sides of the sheath having` interlocking bayonet joints, and the said sheath having front end and intermediate rivets located for engagement with the upper edge of the blade.

3. A skate having a sheath with sides spaced to receive a blade and be pressed against the same, in combination with a blade fitted between the sides of said sheath7 and means applied to the sheath tor clamping the sides thereof onto the blade,y the said blade and sides of the sheath having interlocking; bayonetiointS, the said sheath having front end and intermediate rivets located for engagement with the upper ec gc of the blade` the sides of the sheath at the rear end thereof being pressed together and affording a stop for the rear end of the blade.

et. A skate having a sheath with sides spaced to receive a blade and be pressed against the same, in combination with a blade fitted between the sides of said sheath, and means applied to the sheath for clamp ing the sides thereot onto the blade, the said blade and sides of the sheath having interlocking bayonet lioints, the said sheath having front end and intermediate rivets located for engagement with the upper edge ot the blade, the sides of the sheath at the rear end thereof being pressed together and affording a stop for the rear end of the blade, the extreme rear end oi the blade having a reduced portion that engages directly under the pressed together rear end portion of said sheath.

5. A skate having a sheath with sides spaced to receive a blade and be pressed against the same, in combination with a blade fitted between the sides ot said sheath, and means applied to the sheath for ela-mpw ing the sides thereof onto the blade, the said blade and sides ot the sheath having inter locking bayonet joints, the said sheath having front end and intermediate rivets located tor engagament with the upper edge of the blade, said blade at the upper edge of its extreme front portion having a notch that engages the front rivet.

6, The structure defined in claim Q in which said sheath at its upper intermediate portion is tubular, the remaining' side portions thereof being` farallel 'for flat engagement with the blade.

7. A skate having a U-shaped sheath formed with substantially flat parallel sides completed at its front and rear ends but having a tubular upper intermediate portion, the sides ofthe sheath at the rear end beingr pressed together and rigidly secured.

in combination with nut-equipped bolts passed through the parallel side flanges ot said sheath at the front and rear portions thereof, and a blade having` L-shaped lock notches fitted between the sides of said sheath and engageable with said nutequipped bolts by a bayonet joint and endwise movement ot the blade, the nuts on the bolts when tightened serving to tightly clamp the side flanges of the sheath against said blade.

8. The structure defined in claim 7 in which rivets are passed through the trout and intermediate portions of said sheath and in which said blade is eueaeeable with said rivets when theY blade is interlocked with the sheath and secured in working position.

In testimony whereof l atiix my signature.

HELMER M. SMILDEN. 

